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# show options available
mvn help:help

# Interactive shell to evaluate maven expressions like ${project.groupId}
mvn help:evaluate

# shows information about the plugin
mvn help:describe -Dplugin=org.apache.maven.plugins:maven-shade-plugin -Ddetail

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tr -cs A-Za-z '\n' |
tr A-Z a-z |
sort |
uniq -c |
sort -rn |
sed ${1}q

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filter kubernetes response with kubectl

make file with all results , then filter into new file

kubectl get nodes > all_nodes.txt

cat all_nodes.txt | while read line ; do if [[ $line == *"sobusy"* ]]; then echo $line; fi; done > filtered_nodes.txt

filter results by search criteria

kubectl logs <pod> <search_criteria> > some_file.txt

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#!/bin/bash

################
# Uncomment if you want the script to always use the scripts
# directory as the folder to look through
#REPOSITORIES="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
REPOSITORIES=`pwd`

IFS=$'\n'

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# list installed packages
rpm -qa 

# list files installed by a package
rpm -ql [rpm file name]

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$ find . -name "*.jar" -print0 | xargs -0 -n1 unzip -l | grep Exception

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# lists the env vars for the process
$ cat /proc/28818/environ | tr '\0' '\n'

# lists more details about the process, including the env vars
$ ps e -ww -p 28818

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$ mvn spring-boot:run \
   -P '!default' \ # setting a profile, in this case, excluding it by prefixing it with '!'
   -Dspring-boot.run.jvmArguments="-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:8000" # debug settings

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# Remove duplicates from zsh_history:

$ cat -n .zsh_history | sort -t ';' -uk2 | sort -nk1 | cut -f2- > .zsh_no_duplicates_history
$ mv .zsh_no_duplicates_history .zsh_history

# In case of failure (i.e, `sort: Illegal byte sequence`), debug
# replacing the command above with `head`:

$ head -n 10000 .zsh_history | sort -t ';' -uk2 | sort -nk1 | cut -f2- 

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# find string accross all git revisions
git grep "string/regexp" $(git rev-list --all)

# diff file between two different branches or tags
git diff master 21.5.5.1 src/files/example.txt

# show file history
git log --stat src/customProperties.json
git log --graph src/customProperties.json